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Table 6

Low-mass ultra-short-period planets with known densities.

Planet Orbital Mass Radius Density Multiple Ref.
period [d] [M] [R] [g cm-3] system1

KOI 1843.03 0.18 0.463 73 NO Rappaport et al. (2013)
Kepler-78 b 0.36 1.69 ± 0.41 1.20 ± 0.09 5.3 ± 1.8 NO Howard et al. (2013)
K2-106 b 0.57 1.52 ± 0.16 YES this work
55 Cnc e2 0.74 8.63 ± 0.35 2.00 ± 0.14 YES Winn et al. (2011)
55 Cnc e2 0.74 8.37 ± 0.38 2.17 ± 0.10 4.5 ± 0.20 YES Winn et al. (2012)
WASP-47 e2 0.79 12.2 ± 3.7 1.817 ± 0.065 11.3 ± 3.6 YES Dai et al. (2015)
WASP-47 e2 0.79 9.11 ± 1.17 1.87 ± 0.13 7.63 ± 1.90 YES Sinukoff et al. (2017a)
Kepler-10 b 0.84 3.33 ± 0.49 5.8 ± 0.8 YES Dumusque et al. (2014)
CoRoT-7 b 0.85 4.73 ± 0.95 1.58 ± 0.09 6.61 ± 1.72 YES Haywood et al. (2014)
HD3167 b 0.95 5.69 ± 0.44 1.574 ± 0.054 YES Gandolfi et al. (2017)

Notes.

(1)

“NO” means that no other planet is known.

(2)

Two measurements were obtained for this planet.

(3)

Lower limit of mass and density estimated from orbital period and radius.

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